I'm trying to render a scene, CPU path works and OpcenCl with cpu works. Opencl with only gpu renders 0 samples.
[LuxCore][671.109] [LinearToneMap] Compiling kernels
[LuxCore][671.109] [LinearToneMap] Kernels cached
[LuxCore][671.109] [LinearToneMap] Compiling LinearToneMap_Apply Kernel
[LuxCore][671.109] [LinearToneMap] Kernels compilation time: 0ms
[LuxCore][671.656] [GeForce GTX 965M Intersect] Memory used for OpenCL image pipeline: 40828Kbytes
[Engine/Final] Finished rendering layer "View Layer
usually when vram is full it says something, but looking a luxcore panel in blender I still had free memory so I have no idea what is going on. I'll try to make empty scene and appen all object to see if my file is at fault.
OpenCl renders 0 samples
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Please upload a testscene that allows developers to reproduce the problem, and attach some images.
- Egert_Kanep
- Posts: 237
- Joined: Tue Mar 13, 2018 10:34 am
Re: OpenCl renders 0 samples
Image resolution was 1000x1300 and path depths are default.
Re: OpenCl renders 0 samples
It sounds like the GPU freeze if it works with OpenCL CPU but not with OpenCL GPU device.Egert_Kanep wrote: ↑Fri Oct 18, 2019 8:45 pm I'm trying to render a scene, CPU path works and OpcenCl with cpu works. Opencl with only gpu renders 0 samples.
- Egert_Kanep
- Posts: 237
- Joined: Tue Mar 13, 2018 10:34 am
Re: OpenCl renders 0 samples
So the gpu is just not ''beefy'' enough?
- Egert_Kanep
- Posts: 237
- Joined: Tue Mar 13, 2018 10:34 am
Re: OpenCl renders 0 samples
So I got it working with tiled rendering 64 pixel, super
Re: OpenCl renders 0 samples
Some (new) GPU use virtual memory and can swap their memory to the CPU memory however it is a very slow operation. Tile rendering can save a lot of memory for high resolution renderings, may be you were running out of physical GPU memory.Egert_Kanep wrote: ↑Fri Oct 18, 2019 9:54 pm So I got it working with tiled rendering 64 pixel, super
Re: OpenCl renders 0 samples
This is not as simple as you make it sound. It won't just run out of memory and swap to system ram. I constantly keep running out of vram (8gb rtx2070) and instead of slow rendering I get no rendering on gpu and only lighttracing from cpu.(if lighttracing is enabled). I think opencl just fails to do anything if you run out of vram and only leaves cpu to do rendering which clearly looks weird if lighttracing is enabled.Dade wrote: ↑Sat Oct 19, 2019 12:30 pmSome (new) GPU use virtual memory and can swap their memory to the CPU memory however it is a very slow operation. Tile rendering can save a lot of memory for high resolution renderings, may be you were running out of physical GPU memory.Egert_Kanep wrote: ↑Fri Oct 18, 2019 9:54 pm So I got it working with tiled rendering 64 pixel, super
I'm starting to think that modern gpus(nvidia) just don't play well with opencl...
Re: OpenCl renders 0 samples
It does if you have an new AMD GPU.
Re: OpenCl renders 0 samples
Is that a recomendation, or your idea of solution to the issue?